Electrically-operated revolving door.



E. C. HAVILAND. ELECTRICALLY OPERATED REVOLVING DOOR.

APPLICATION FILED SEPT- I5, 1913. 1,278,145.

Patented Sept. 10, 1918.

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ELECTRICALLY OPERATED REVOLVING DOOR.

I H APPLICATION FILED SEPT. 15, I913. 1,278,145. PatentedSept. 10,1918.

4 SHEETS-SHEET 2.

E. C. HAVILAND. ELECTRICALLY OPERATED REVOLVING DOOR.

m. M an L P E S D E L H N 0 .H A C U DI P A Patented Sept. 10, 1918.

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E. C. HAVILAND. ELECTRICALLY OPERATED REVOLVING DOOR. APPLICATION FILED SEPT 15 1913 Patented Sept. 10, 1918.

4 SHEETS-SHEET 4 UNITED STATES PATENT OFFICE.

EDWARD G. HAVILAND, 0F GHAPPAQUA, NEW YORK,' ASSIGNOR TO VAN KANNEL REVOLVING DOOR COMPANY, OF NEW YORK, N. Y., A CORPOBATIOIQ' OF NEW JERSEY.

ELECTRICALLY-OPERA'IED REVOLVING DOOR.

Specification of Letters Patent. Pate t d S t- 10 1918 Application filed September 15, 1913,. Serial No. 789,927.

To (ill whom it may concern:-

Be it known that I, EDWARD C. HAVILAND,

a citizen of the United States, residing at Chappaqua, in the county of lVestchester and State of New York, have invented certain new and useful Improvements in Electrically-Operated Revolving Doors, of which the following is a specification.

This invention relates to electrically operated revolving doors.

In revolving doors now commonly used,

.with regard to the mode of rotary operation,

there are two modes, the more common of the two being the rotary motion glven to the door by physical force of the person entering or leaving the door, and the other is one wherein the door is continuously revolved by an electric motor, regardless of any physical force applied by a person.

In cases where the door is continuously revolved, the electric current is obviously being continuously consumed, regardless of the ingress or egress of peo le through the door. Now, the object of t is invention is to provide a means whereby the motor for revolving the door is only ut in operation when a person is passing is rough the door and it consists of means carried by the individual wings of the door that may be either consciously or unconsciously actuated by the person passing through the door to establish electrical circuits, by which the motor is put in operation for only such time as is necessary for the person to pass into or out of the door, thus obviously saving the current and making the operation of doors of this character less expensive.

In the drawings:

Figure 1 is a brokenelevation partly in section, showing the upper portion of a wing of a revolving door.

Fig. 2 is an enlarged sectional view of the upper part of the door structure;

- ig. 3 is a section taken about on line a'a of Fig. 2;

Fig. 4 is a plan view, partially in section, of the inner end of one of the wings;

Fig. 5 is a vertical section of a portion of one of the win s through the push plate, taken about on ine (Z- Z of Fig. 6, looking in thedirection of the arrow;

Fig. 6 is a rear view of the push *plate;

Fig. 7 is a horizontal sectional view taken on line b --b of Fig. 5.

' gear wheel 6 which may Fig. 8 is an elevation of the lower portion of the inner push plate member;

Fig. 9 is an elevation of the motor-actuated arm, showing its connection with one of the wings of the door;

F 10 is a bottom plan view of the arm;

Fig. 11 is a broken top plan view of the wing WhlCh has operative connection with the motor driven arm;

Fig. 12 is a sectional view of a portion of a wing taken on line cc of Fig. 9, showing the manner of connecting th'e motor-driven arm with the upper rail of one of the wings.

This invention is applied to a door of-the type shown and described in Patent Number 836,843, dated November 27, 1906, and granted to Theophelus Van Kannel, wherein the wings of the door are mounted upon a central spindle and maintained in proper radial position by means of suitable braces.

or ties, which wings are capable of folding around the shaft, so as to lie infone direction from the center, but since the manner of mounting the wings upon the shaft or supporting the wings is immaterial to the present invention, the mechanism for so-doing will not be described or shown.

Referrin to the drawings, particularly to Figs. 1 an 2, the numeral 1 designates the main shaft, 11 on which the wings 2 are suitably mounte The numeral 3 designates the ceiling of the door structure and through an aperture 4 in the ceiling extends a sleeve 5 to the upper end of which isattached a be in mesh with a suitable train of gearin leading to a suitable motor 20, prefera ly an electric motor and by which the sleeve 5, and parts carried thereby, are rotated. The sleeve is provided, near its lower end, with an integral disk 7, provided in its underneath face, with a recess 8 for the reception of a ring of insulating material 9, in which is embedded two metallic rings 10 in electrical connection through wires 9' and .9 with the two metallic collars 11 and 11', which surround a sleeve of insulating material 12, which is seated upon a shoulder 13v formed on the sleeve 5. The disk 7 of the sleeve 5 is provided with a lateral projection 14 to which is bolted, an arm 15 carrying at its outer end, a roller 16 which is embraced between the lateral halves of a retaining member 17 each half of the retaining member being cut away,

3 iron or bracket 30, to whic so that when the halves are held together by the screws 18 an elongated slot 19 will be formed for the reception of the headed pintle 20 of the roller 16. By'this arm the motor driven sleeve 5 has connection with one only of the wings 2, as shown in Fig. 1 and it is through this connection that all or the wings of the door are revolved, when the sleeve 5 is rotated.

Each wing is provided at the inner edge of its top rail with a recess 21 in which blocks 22 of insulating material are seated. In the upper surface of these blocks, T provide metallic plates 23, having attached thereto metallic strips 24 having rounded contact heads 25 which extend through slots 26 in the plates 23. These spring strips are oppositely mounted, as better shown in Fig. 4, 'so that their contact heads will protrude through the apertures in position to engage the metallic rings 10 carried by the power driven sleeve 5, and thus it Wlll be seen that the contact heads 25 are, during the rotation of the wings, in contact with the rings 10. The plates 23 are secured to the insulating material 22 b means of screws 27 from which run wlres 2828, which are conducted through grooves 29 in the top rail of the wings and down through grooves in the outer stiles of the Wings to the push plates.

Mounted upon the ceilin 3 is an angle is attached a block 31 of insulating material. This block hasattached to its inner face by means of screws 32, two lates 33 which are provided with ears 24, tween which are mounted contact arms 34 provided with rounded heads 35 which are in engagement with the rings 11 and 11. These contact arms are kept in constant engagement with the rings 11 by means of coil springs 36. From the screws 32 wires 37 and 38 run, the wire 38 running to one of a series of batteries 39 and the wire 37 running to a motor switch 40, which controls the current to set in motion the main driving motor, not shown. This motor, it will be understood, may be of any approved type, and have sufiicient power to revolve the door when switched into the circuit by the means that will not be described. l

The numeral 41 designates the push-plate which, to all appearances, save with minor exceptions which will appear, resembles the ordinary stationary push-plate now in common use upon revolving doors, but the construction materially difi ers from the ordinary push plate, as will appear. The pushplate 41 is provided with a rectangular flange 42, which rests in a recess 43, in the outer stile of the wing, and is provided with an elongated rectangular opening for the reception of the movable plate 44, which is hinged to the plate 41 by means of a rod 45,,

net/area and around the rod 45 are coiled springs 46 with their upper ends in engagement with the plate tl and their lower ends in engagement with the movable plate a l and so arranged that their force will constantly be exerted to keep the plate 44 in the position shown in Fig. 5, wherein no electrical contact is made, nor electrical circuit completed. Attached to the movable plate at are the outer ends of the hand rails or push-bars 4:7, and the inner ends of these rails are pivotally mounted between ears 48 carried by the inner stile of the wings, so that any pressure exerted against the hand rails, which are almost invariably engaged by a person entering or leaving the door, will force the plate ea inward to complete the electrical circuit with the motor, through the bat teries. The inner lower part of the plate 44 is provided with a strip of insulating material is seated in a recess in the inner face of the plate. Against this insulating material normally rests one end of a contact point 50, which is carried by a block ofinsulating material 51 seated in a recess 52 in the outer stile of the door. To this insulating material 51 is attached another contact polnt 53 and as shown best in Figs. 5 and. 7, these two contact points are normally out of engagement. To these contacts run the wires 2828 leading to the contact Strips 24..

In Fig. 5, T have shown a push button 54 with wires 55 running to the bases of the contacts 50 and 53, so that the switch operating circuit, through the batteries 39, may be operated from the push button, if desired, or both devices, that is to say, the swinging push plate and the push button, may be employed together, on the same plate, leaving it optional with the person en tering or leaving the door to use either one or. the other. I

As stated in the foregoing part of this specification, certain parts of the present mechanism are adapted for application to wings that are capable of being folded so as to extend in one direction from the central shaft, and in order to permit this folding, when the usual braces which connect the wings and which are not shown, are detached or released, I prefer the roller and slot connection shown in Figs. 9, 11 and 12. In Fig. 9 the roller is shown in the position it \vi.l occupy when the wings are in radial position,

with relation to the post or main shaft 1, but

when the wings are folded, the roller will occupy the opposite end of the slot and this is because of the fact that the wings in the door of this type, as shown in the patent above referred to, do not turn upon the post, as a center, in folding but rather shift around it.

In operation, the wings of the doors are held in radial position by usual braces. Pressure exerted upon the push-plate, through of the motor switch, will operate the switch to start the motor. Obviousl when thepressure is removed from the hand rails, the springs 46 will restore the plate 44 to normal position, and break the circuit and stop the motor.

While I have shown a gear wheel mounted directly upon the sleeve 5, it will be understood that I do not limit myself to this precise construction as any suitable gearing or method of transmitting the power from a suitable motor to said sleeve, may be employed.

Having thus fully described my invention, what I claim is:-

1. In an electrically operated revolving door, having a plurality of radial win s, the combination of a central spindle, a dis 'carried by the said spindle and provided with an arm having operative connection-with a wing of the door, a sofirce of electrical supply, a motor having a connection with the door for rotating same, metallic contact points carried by said disk and having electrical connections with the motor, contact points carried by each wing and in constant engagement with the contact points upon the disk, circuit controlling means carried by each wing, and in electrical connection with, the contact points carried by the wings, whereby, when the circuit is closed by pres sure applied to the circuit controlling means of the wings, the motor is set in motion to revolve the door, and the circuit is broken when pressure is removed, to stop the motor.

2. In an electrically operated revolving door, having a plurality of radial wings, the, combination of a central spindle, means con necting the spindle with a wing so that the wing and spindle rotate together, a source of electrical supply, a motor having a connection with the door for rotating same, electrical contact oints carried by the spindle, and having e ectrical connection with the motor, contact points carried by each wing and in'constant engagement with the contact points carried by the spindle, 'a circuit controlling means carried by each wing and in electrical connection with the contact points carried by the wings, whereby, when the circuit'is closed by pressure applied to the circuit controlling means of the wings, the motor is set in motion to revolve the door, and the circuit is broken when pressure is removed to stop the motor.

3. In an electrically operated revolving door having a plurality of radial wings, the combination of a central spindle, a disk carried by the spindle and connected to one of the wings, a source of electrical supply, a motor having a connection with the door for rotating same, metallic contact points carried by said disk and having electrical connections with the motor, contact points carried by each wing and engaging constantly the contacts upon the disks and circuit controllingmeans carried by each wing and in circuit with the contact points carried by the wings.

4. In an electrically operated revolving door having a plurality of radially arranged wings, the combination of a central spindle, a disk carried by the spindle and connected to one of the wings, a source of electrical supply, a motor having a connection with the door for rotating same, metallic contact points carried by said disk and having electrical connection with the motor, contact points carried by each wing and engaging constantly the contacts upon the disk and normally outwardly held, circuit closures carried by each wing and in circuit with the contact points carried by the wings whereby,

'when the circuit is closed by pressure applied to the closure of the wings the motor is set in motion to revolve the door and the circuit broken when pressure is removed to stop the motor.

In testimony whereof I aflix my signature in presence of two witnesses.

' EDWARD C. I-IAVILAND. Witneses:

JOHN F. SUNDERLAND, H. W. Dyna. 

